| Date | IP Address |
| 2023-08-26 | 20.210.64.0 (ClassC) |
| 2023-11-02 | 23.6.254.241 (ClassC) |
| 2024-09-03 | 23.37.217.140 (ClassC) |
| 2024-12-30 | 23.198.151.50 (ClassC) |
| 2025-01-14 | 23.196.159.18 (ClassC) |
| 2025-03-15 | 2.19.137.12 (ClassC) |
| 2025-05-16 | 23.38.239.204 (ClassC) |
| 2025-07-07 | 23.37.217.147 (ClassC) |
| 2025-08-28 | 184.24.192.238 (ClassC) |
| 2026-01-31 | 104.18.3.105 (ClassC) |
| Date | Domain | IP |
| o.rosettastone.co.jp | 2014-06-05 | 66.235.138.226 |
| www.rosettastone.co.jp | 2024-11-25 | 35.77.156.230 |